EP 4271879 A1 20231108 - METHOD FOR PRODUCING PRODUCTS BASED ON WOOD AS A RAW MATERIAL
Title (en)
METHOD FOR PRODUCING PRODUCTS BASED ON WOOD AS A RAW MATERIAL
Title (de)
VERFAHREN ZUR HERSTELLUNG VON PRODUKTEN AUF BASIS VON HOLZ ALS ROHSTOFF
Title (fr)
PROCÉDÉ DE PRODUCTION DE PRODUITS À BASE DE BOIS EN TANT QUE MATIÈRE PREMIÈRE
Publication
Application
Priority
- EP 20217520 A 20201229
- EP 2021085975 W 20211215
Abstract (en)
[origin: CA3203411A1] The invention relates to a method for producing products based on wood as a raw material, characterised in that wood, in the form of wood particles, is subjected to extraction treatment using an extracting agent which comprises one or more organic solvents in an organic-aqueous mixture of the solvent or solvents with water, wherein the content of fatty acids in the wood particles is reduced, by the extraction treatment of the wood particles using the solvent, by at least 70%, measured as hexanal content in wt.% after accelerated aging for 72 h at 90°C, but the content of cellulose, hemicelluloses and lignin is largely maintained during this extraction treatment.
IPC 8 full level
CPC (source: EP US)
D21C 3/20 (2013.01 - EP); D21C 9/007 (2013.01 - US); D21C 9/08 (2013.01 - EP); D21C 9/086 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4023812 A1 20220706; CA 3203411 A1 20220707; CN 116897233 A 20231017; EP 4271879 A1 20231108; EP 4271880 A1 20231108; JP 2024501377 A 20240111; US 2024076831 A1 20240307; WO 2022144176 A1 20220707; WO 2022144377 A1 20220707
DOCDB simple family (application)
EP 20217520 A 20201229; CA 3203411 A 20211229; CN 202180094366 A 20211229; EP 2021085975 W 20211215; EP 2021087767 W 20211229; EP 21831039 A 20211215; EP 21836586 A 20211229; JP 2023563337 A 20211229; US 202118259700 A 20211229